電視幀 的英文怎麼說
中文拼音 [diànshìzhèng]
電視幀
英文
television frame-
In television, a persistence of the electrical charge image on the phosphor screen for a small number of frames
在電視技術中,熒光屏上畫面幀的電荷映象暫留。The subject has mainly finished designing and debugging software and hardware of a / d decode module, fpga video processing module, video data frame deposit module, base clock produce module, d / a encode module, i2c bus control module, etc. a / d decode module gathers analog tv signals and realize video decode ; fpga video processing module deals with the data after decoding and produces systematic logic control signal ; video data frame deposit module offers the buffering area to a large n umber of high - speed video data ; base clock produce module through input basic video signal offers system accurate relevant synchronous signal ; under control of video processing module d / a decode module convert digital video data into compound tv signal which can be shown in tv directly ; i2c bus control module is used to initialize the chip of system by simulating i * c bus timing
本課題主要完成了a d解碼模塊、 fpga視頻處理模塊、視頻數據幀存模塊、基準時鐘產生模塊、 d a編碼模塊、 i ~ 2c總線控制模塊等部分軟、硬體設計及調試。其中a d解碼模塊採集模擬電視信號實現視頻解碼; fpga視頻處理模塊對解碼后的數據進行去噪處理的同時還負責系統的邏輯控制;視頻數據幀存模塊為大量高速的視頻數據提供緩沖區;基準時鐘產生模塊通過輸入基準視頻信號為系統提供精確的相關同步信號; d a編碼模塊在視頻處理模塊的控制下把數字視頻數據轉換成復合電視信號供顯示用: i ~ 2c總線控制模塊模擬i ~ 2c總線時序實現對系統中編、解碼晶元的初始化。In the beginning, the dissertation gives an overview of digital video system and an introduction of the format of mpeg - 2 transport stream, mpeg - 2 physical interface and frame structure of ds3 stream
文章首先介紹了關于數字電視系統的一些基本概念, mpeg - 2傳送流格式和mpeg - 2的物理介面,以及ds3碼流的幀結構。In television, 2 : 1 interlace is used, giving two vertical scans ( fields ) per frame ; one field scans odd lines, and one field scans the even lines of the frame
電視中使用2 : 1的交錯率,即每幀分兩場,垂直掃描兩次,一場掃描奇數行,另一場掃描偶數行。In scanning, the technique of using more than one vertical scan to reproduce a complete image. in television, 2 : 1 interlace is used, giving two vertical scans ( fields ) per frame ; one field scans odd lines, and one field scans the even lines of the frame
利用多次垂直掃描來重顯一幅完整圖象的掃描技術。電視中使用2 : 1的交錯率,即每幀分兩場,垂直掃描兩次,一場掃描奇數行,另一場掃描偶數行。Type of national television system committee system. national television systems committee the association s a committee of electronics industry, for the united states, canada, japan and central america with the business television broadcast of part of regions in south america establishment standard. ntsc format 3 10 per second 30 hz, distinguish the rate to 525 to scan the line. palthe line pour the system the type : phase alteration line this standard used fors majority europe the nation, australia, central america with the business broadcast of part of regions in south america. when the pal format show, 25 per second 25 hz, distinguish the rate to 625 to scan the line. line
電子工業協會的一個委員會,為美國加拿大日本以及中美和南美部分地區的商業電視廣播制定標準。 ntsc格式每秒三十幀30hz解析度為525掃描線行。 pal逐行倒相制式phase alteration line :此標準用於大多數歐洲國家澳大利亞中美和南美部分地區的商業廣播。A method for overcoming the incompatibility of film and video frame rates when converting or transferring film ( shot at 24 frames per second ) to video ( shot at 30 frames per second )
在將電影(每秒24幀)轉換或傳輸為電視(每秒30幀)時,一種克服電影和電視幀速率不兼容的方法。The video system to be made available shortly by unicom is based on unicom s unified data network platform. it represents another new service following voip, internet service and fr service made available by unicom. its purpose is to provide users with economical and useful video conference service that is easy to access and easy to use as well as desk - top video telephone service and such multimedia application as distance education and remote medical consultation
中國聯通即將推出的視頻系統是基於聯通統一的數據網路平臺,是繼voip業務、網際網路業務和幀中繼業務之後聯通的又一新業務,目的是為用戶提供方便接入、方便使用、經濟實用的會議電話業務和桌面可視電話業務以及遠程教育、遠程醫療等多媒體應用。An important limitation of electronic imaging today is that most available still - frame or video cameras can only record images at a resolution lower than desirable
對當今電子圖像的一個嚴重的限制是:絕大多數所用的靜態幀或視頻攝像機記錄圖像的解析度較低,很不合意。Through researching of the pvc of fr channel connected with satellite network, the paper realizes the meeting switch function of videoconference system. by cnms communicating with the distant terminal management agent ( tma ) of videoconferencing system, the management and control of videoconference terminal dvc are realized
在對衛星網的幀中繼接入通道的永久虛電路pvc的研究基礎上,實現了會議電視系統的會場切換管理;通過cnms與遠端會議電視終端代理tma的通信,實現了對各會場的會議電視終端dvc的控制和管理。Because of the broadcasting characteristics and power efficiency of multi - media, tds - ofdm ’ s dcli has strong capacities of adapting to high moving speed and preventing various distortions, it could be applied to the common complex distortion environment of broadcasts that cover large areas ; the time - frequency combination process allows for fast channel estimation and balancing, which could be used to support high - speed moving reception of high definition television
由於具有多媒體廣播特點和省電功能, tds - ofdm的幀頭適應高速移動和抗多徑干擾的能力非常強,能適應大范圍廣播覆蓋造成的復雜干擾環境;時頻結合處理的快速通道估計和均衡,支持高清電視高速移動接收。Moreover, video control program to implement internal function of fpga is designed including video capture time sequence control, ping - pang frame buffer read and write time sequence control and lcd display time sequence control, and program ' s simulation and analysis is also provided. at last, this paper presents a portable iv ' s video processing system, and proposes three buffer strategy to control capture buffer. and a moving object detection algorithm of combing an adaptive background subtraction technique with a three - frame differencing is adopted
設計了基於fpga系統結構的車載視頻顯示電路板;利用單片機io口模擬i2c時序,實現了視頻解碼晶元控制;利用fpga實現視頻控制,研究了採集通道時序控制、雙幀存ram讀寫時序控制及lcd顯示時序控制的方法,並進行了軟體模擬和分析;設計了車載視頻檢測系統方案,給出了管理採集緩沖區的三幀緩沖策略,採用綜合三幀差分和自適應背景相減的演算法實現運動檢測,連通體檢測去除虛目標,模擬實驗證明其有效性,同時分析了該演算法在dsp視頻檢測系統中的簡單實現方法。A real time control protocol for simplex applications using lsd hsd mlp channels of the fram structue for a 64to 1920kbit s channel in audiovisual teleservices
採用視聽電信業務中64 1920kbit s通道幀結構的lsd hsd mlp通道單工應用的實時控制協議Full - motion video : full - motion video is digitally recorded video played back at the broadcast standard of 30 frames per second, or close enough to that speed so the video appears smooth rather than jerky
全運動圖像:全運動圖像是以數字方式記錄的視頻圖像,以每秒30幀的電視廣播標準或者非常接近於此的速度重現圖像,因而這些視頻圖像看上去很自然,沒有跳躍感。Image processing circuit made up of several following parts : the pretreatment of the video, a / d change, the frame memory, the track window and the digital signal proc
圖像處理電路由以下幾部分組成:視頻預處理、模數轉換、幀存儲器、跟蹤窗口、數字信號處理器。Even though the images flashed up for just 50 milliseconds, roughly the duration of a single frame of standard television footage, their verdicts tallied well with judgements made after a longer period of scrutiny
即使這些圖像只閃現50毫秒,大約是一幀標準電視鏡頭的持續時間,但他們的判斷也與長時間仔細研究后做出的判斷非常相符。At present a new kind of tv set appears in the market. it " s based on the digital process technology, and we call it digital process tv set. it use various of the diagital methods to process the interlace, low field _ rate signal, include the deinterlace, field _ rate conversion and the methods of display enhance
他的核心是利用各種數字的方法對隔行低場頻的模擬電視信號進行去隔行、提高幀頻、以及進行降噪和各種畫質增強的處理,極大的改善了畫面的質量。數字處理電視的核心是電視信號數字處理晶元。Because computing exactitude contrail is completed after the event by shooting range photic measure equipment, better quality track record to image collected by photoelectricity sensor become a very important work it exists the problem of data transmission rate low in the process of storing data to hd from high frame frequency and great array ccd camera
由於靶場光測設備對目標精確軌跡計算的工作要在事後完成,因此對光電傳感器採集到的圖像數據高質量記錄就成為一項極其重要的工作。從電視測量系統的高幀頻、大陣列的數字ccd像機採集並存儲數據到硬盤的過程中,存在數據傳輸速率低不能滿足要求的問題。分享友人